The Estate should be compensated for book sales if there is an agreement that they be paid x for each book sold regardless of anything else. Do you believe it is instead the case that they got a one-time fee from the publisher for the right to sell unlimited books and not per-book?

Also Spaldron clarified that he was "referring to the royalties from the massive increases in book sales (millions apparently) as a result of the films popularity, not the royalties from the films themselves." So that entered the discussion.